TABLE IV-5 (cont'd)
ESTIMATED UNWEATHERED ACTIVITY ON SURFACE AND EXPOSURE RATE
AT ONE METER, RONGELAP ISLAND
TS
Nuc lide
Reference
Nuc lide
H+0.5 Day
Activity
Per Unit Area,
Ci Km~2
H+0.5 Day
Exposure
H+26 Day
Activity
-~Per Unit Area,
Ci Km7~2
Rate, R h7!
Rate, R h7!
H+26 Day
Exposure
Pr-146
Nd~144
Nd-147
Nd-149
Pm-147
Pm-149
Pm-150
Pm-151
Sm-151
Sm-153
Sm-156
Eu-155
Ce-141
Ce-141
Nd-147
Ce-141
Ce-141
Ce-141
Ce-141
Ce-141
Ce-141
Ce-141
Ce-141
Ce-141
2.6x1073
4.7x10717
3.5x103
1.4x103
5.7x107!
4.7x103
3.8x103
4.3x103
5.1x1072
1.3x102
9.6x102
7.3x107!
5.2x1078
8.9x1073
9.8x1073
4.1x10711
1.0x1073
1.1x1071
2.5x1072
9.4x10711
1.2x1073
1.9x1073
6.8x1077
7.1x102
-
1.8x1073
~
-
Eu-157
Eu-158
Gd-159
Tb-161
U-237
U-239
Ce-14)
Ce-141
Ce-141
Ce-141
U-237
Pu-239
6.5x102
2.1x1072
1.9x103
9.8x109
2.4x104
1.0x10~2
3.0x1073
5.2x107/
1.4x1073
1.3x1076
5 .4x1072
8.1x1079
7
1.7x103
-
3.8x1073
-
5.7x10710
3.2x10-2
4.31079
Eu~156
Np-237
Np-239
Pu-239
Ce-141
U-237
Pu-239
Pu-239
3.5x101
1.1x1079
1.0x10°
4.3x1073
8.0x10~4
4.0x10712
3.0x107!
-
-
-
~